The invention is a hinge having a first joint part a second joint part and at least one articulated axle element. A locking device selectively locks the first joint part relative to the second joint part. A basic element is arranged at the first joint part. A holding device, having at least one articulated axle seat, is arranged at the second joint part. The articulated axle element is arranged at the articulated axle seat, and is arranged at the basic element. The locking device has at least one first clamping plane arranged at the articulated axle element, and a first clamping element arranged at the holding device. The first clamping element comprises a second clamping plane. The first clamping plane is located at the second clamping plane to lock the first joint part in relation to the second joint part.